RenAn Precision Technology (HaiNan) Co., Ltd

Powertrain tester - RAET1000 portal tester

The RAET1000 is a highly integrated and portable EV powertrain tester specialised in the research and development, manufacturing line, and on-site testing of electric vehicle power systems. It meets the test requirements of drivers and motors of various voltages and power levels, and it is compatible with the market’s current mainstream torque/speed sensor signals., to realise the synchronous measurement and recording of DC power parameters, AC power parameters, and mechanical power system parameters. This tester supports AC and DC voltage from 5VP to 1250VP, AC and DC current from 5Ap to 1000Ap, 10V analogue voltage input, 0-20mA/4-20mA analogue current input, and pulse signal input with peak value less than 20V/400kHz.

The tester’s accuracy completely fulfils and surpasses the criteria of national standards for test instrument accuracy:

“GB/T 16318-1996 Basic test techniques for rotating traction motors”

“GB/T 29307-2012 Drive Motor System for Electric Vehicles Reliability Test Method”

“GB/T 18488.2-2015 Drive Motor System for Electric Vehicle Part 2: Test Method”

Highly Integrated EV Powertrainer tester

The tester integrates 4 voltage sensors, 4 current sensors, sensor conditioning circuit, power analyzer, motor board (torque & speed measurement), sensor auxiliary power supply in a portable box.

all in one RAET EV powertrain Tester

High Precision, Wide Range, All sensors covered

Voltage Measurement

At present, most of the power analyzers used for EV driver testing have a maximum test voltage of about 1000V. In the face of the current higher voltage power system, twice the overshoot voltage will be clamped by the instrument and cannot be measured correctly. The maximum direct measurement voltage of RAET1000 can be expanded to 2200Vp, realizing the measurement of twice the overshoot voltage of the driver output PWM wave.

Current Measurement

The test report shows that the input current of a driver with a rated input current of 600A can be as small as 1A at low speed and small torque. The RAET1000 fully takes this into consideration. In the range of 1~1000A, the DC input current can meet the requirement of 0.05%rd Accuracy requirements. For a typical current sensor, this means that its full-scale accuracy is better than 1ppm!

Torque & speed Measurement

Torque speed measurement is compatible with mainstream torque/speed sensors currently on the market. Support: ● Voltage output type: ±10V; ● Current output type: 0~20mA, 4~20mA; ● Frequency output type: 0.1Hz~400kHz; ● Use the same sampling frequency as the electrical signal to measure the torque and speed signals synchronously, and obtain the real-time waveform of the instantaneous shaft power.

dc voltage curve - ev powertrain tester

Easy to operate on site, highly efficient, less wirings

The RAET1000 EV powertrain tester is highly integrated, the connections between all test units have been completed internally, and the field connections are simplified to a minimum:

Testing technicians only need to:

  • pass four current wires through the tester;
  • connect the three AC and two DC voltage wires to voltage terminals
  • and connect the torque meter output cable to the T/N port;
  • Finally, use a network cable to connect to the host computer to start testing and recording.
EV powertrain tester - RAET1000

Functions of RAET1000 EV powertrain Tester

RAET1000 EV powertrain tester supports real-time display voltage, current, harmonics and rotation speed curve, and it also records the data to allow user to analysis the histroical data and curves. What is more, the tester also provide about 100 variables, and this feature enables the secondary development and make it much easier. 

All parameter displayed same screen

The drive input electrical parameters, drive output/motor input electrical parameters, motor output electrical parameters, drive efficiency, motor efficiency, etc. are simultaneously measured and displayed on the same screen during the EV Powertrain Test. 

EV Tester voltage, current ,power Trends EV powertrain test solution with RAET1000 tester

Historical data record & display

During the test, RAET1000 EV powertrain tester can record the trend curves of nearly 100 characteristic values, and can simultaneously display the trend curves of 13 characteristic values on the same screen.

RAET1000 measures all characteristic quantities in integer cycles (DC and AC synchronously). The shortest update time is one signal cycle and is not limited by the signal cycle. When the signal frequency is as high as 1000Hz, the minimum update time is 1ms.

RAET000 has a built-in large-capacity flash memory, and the recording time of the trend curve is almost unlimited.


Real-time curve display & analysis

Relying on the powerful computing power of modern processors, RAET1000 EV powertrain tester performs synchronous high-speed sampling of signals such as DC voltage, current, AC voltage and current, and torque speed, and calculates in real time to obtain the input power of the driver, the output (input) power of the driver and the motor’s output power during the EV Powertrain test. The instantaneous value of the output power is displayed in real time on a coordinate axis with signals such as voltage and current. 13 channels can be displayed at the same time. 


Extra-ordinary harmonics analysis capability

RAET1000 EV Powertrain tester supports harmonic analysis up to 2000th order, comparing to conventional power analyzers generally only analyze the 100th harmonic, and some instruments can analyze the 500th harmonic. However, the drive harmonics are mainly concentrated near the integer multiple of the switching frequency.
For a driver with a switching frequency up to 20k, when the fundamental frequency is 50Hz, the 500th harmonic analysis frequency is only 25kHz, higher harmonics around 2 times and above the switching frequency cannot be observed by conventional analyzers. 

technical performance parameter RAET1000 EV Powertrain Tester

Technical Parameters EVT1000 EV TESTER

RAET1000 sDK Variables available for EV Powertrain test

NumberNameRemarks - ENNumberNameRemarks - EN
1U1_AVGArithmetic mean of U147Ia_AVGArithmetic mean of Ia
2U1_RMSEffective value of U148Ia_H01Fundamental value of Ia
3U1_MAXMaximum value of U149Ia_RMSroot mean square value of Ia
4U1_MINMinimum value of U150Ia_MEANCalibration mean of Ia
5U1_P-PPeak-to-peak value of U151Ia_MAXthe maximum value of Ia
6I1_AVGArithmetic mean of I152Ia_MINMinimum value of Ia
7I1_RMSEffective value of I153Ia_THDTotal Harmonic Distortion of Ia
8I1_MAXMaximum value of I154Ia_FFrequency of Ia
9I1_MINMinimum value of I155Ia_PHASEPhase of Ia
10I1_P-PPeak-to-peak value of I156Ia_P-PIa peak-to-peak
11P1_AVGArithmetic mean of DC power57Ib_AVGArithmetic mean of Ib
12Uab_AVGArithmetic mean of Uab58Ib_H01Fundamental value of IIb
13Uab_H01Fundamental value of Uab59Ib_RMSRMS value of Ib
14Uab_RMSroot mean square value of Uab60Ib_MEANCalibration mean of Ib
15Uab_MEANCalibration mean of Uab61Ib_MAXMaximum value of Ib
16Uab_MAXMaximum value of Uab62Ib_MINMinimum value of Ib
17Uab_MINMinimum value of Uab63Ib_THDTotal Harmonic Distortion of Ib
18Uab_THDTotal Harmonic Distortion of Uab64Ib_Ffrequency of Ib
19Uab_FTotal Harmonic Distortion of Uab65Ib_PHASEPhase of Ib
20Uab_PHASEPhase of Uab66Ib_P-Ppeak-to-peak value of Ib
21Uab_P-PPeak-to-peak value of Uab67Ic_AVGArithmetic mean of Ic
22Ubc_AVGArithmetic mean of Ubc68Ic_H01Fundamental value of Ic
23Ubc_H01Fundamental value of Ubc69Ic_RMSRMS value of Ic
24Ubc_RMSroot mean square value of Ubc70Ic_MEANCalibration mean of Ic
25Ubc_MEANCalibration mean of Ubc71Ic_MAXThe maximum value of Ic
26Ubc_MAXMaximum value of Ubc72Ic_MINMinimum value of Ic
27Ubc_MINTotal Harmonic Distortion of Ubc73Ic_THDTotal Harmonic Distortion of Ic
28Ubc_THDMinimum value of Ubc74Ic_FFrequency of Ic
29Ubc_FFrequency of Ubc75Ic_PHASEPhase of Ic
30Ubc_PHASEPhase of Ubc76Ic_P-PPeak-to-peak value of Ic
31Ubc_P-PPeak-to-peak value of Ubc77U2_AVGAverage of Uab_AVG, Ubc_AVG, Uca_AVG
32Uca_AVGArithmetic mean of Uca78U2_H01Average of Uab_H01, Ubc_H01, Uca_H01
33Uca_H01Fundamental value of Uca79U2_RMSAverage of Uab_RMS, Ubc_RMS, Uca_RMS
34Uca_RMSroot mean square value of Uca80U2_MEANAverage of Uab_MEAN, Ubc_MEAN, Uca_MEAN
35Uca_MEANCalibration mean of Uca81I2_AVGAverage value of Ia_AVG, Ib_AVG, Ic_AVG
36Uca_MAXThe maximum value of Uca82I2_H01Average value of Ia_H01, Ib_H01, Ic_H01
37Uca_MINMinimum value of Uca83I2_RMSAverage value of Ia_RMS, Ib_RMS, Ic_RMS
38Uca_THDTotal Harmonic Distortion of Uca84I2_MEANAverage of Ia_MEAN, Ib_MEAN, Ic_MEAN
39Uca_FFrequency of Uca85P2_AVGThe sum of Pab_AVG and Pcb_AVG
40Uca_PHASEPhase of Uca86P2_H01The sum of Pab_H01 and Pcb_H01
41Uca_P-PPeak-to-peak value of Uca87Pab_AVGAverage power of Pab
42Ffundamental frequency88Pab_H01Fundamental power of Pab
43cosφpower factor89Pcb_AVGAverage power of PCB
44Ttorque90Pcb_H01Fundamental power of Pcb
45NRotating speed91η1drive efficiency
46P3Motor shaft power92η2Motor efficiency


U1/I1/P1: DC voltage/current/power 

Uab/Ubc/Uca: Line voltage

Ia/Ib/Ic:Line current
U2: Average value of line voltage 

I2: Average value of line current 

Pab/Pcb: Phase-to-phase power 

P2: Three-phase active power

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